A builder's half block model of a diesel trawler of 1950, built at a scale of 1:32. These models were used to 'joggle' the steel plates in relation to the frames before the construction of the full size vessel. Made from wood in the ‘bread and butter’ fashion, it is then coated with a highly finished and smooth paint to enable the drawing in ink of the complex shapes and curves in the three-dimensional form. As well as the plates themselves, it is also annotated with measurements and names of the key components. The rudder is inscribed ‘Yard No 456. Diesel drifter trawler 19'-6" B.R. x 22'-0" B.M. x 10'-6" D.M.: Plating model scale: 3/8" -1ft.’.

The model probably represents the 'Suffolk Warrior' (1960) built at Richards Ironworks, Lowestoft. Yard 456.